计算机与现代化 ›› 2010, Vol. 1 ›› Issue (8): 22-24.doi: 10.3969/j.issn.1006-2475.2010.08.007
• 算法设计与分析 • 上一篇 下一篇
张海文,时良平,郝仰梅
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ZHANG Hai-wen, SHI Liang-ping, HAO Yang-mei
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摘要: 鉴于在地理信息系统中常使用点密度专题图对地图进行渲染,用随机点点数代表在地图上展现的数据,为此本文提出一个基于多边形栅格化,生成指定数目随机点的算法,可以制作出理想的点密度专题图。
关键词: 地理信息系统, 点密度专题图, 栅格, 随机点
Abstract: In view of the condition that dot density map is frequently used for rendering a map in GIS and the datum relating to the map are vividly showed by the amount of random points, this paper proposes an algorithm for generating a given number of random points based on polygon rasterization. With the algorithm, a perfect dot density map can be rendered.
Key words: GIS, dot density map, grid, random point
张海文;时良平;郝仰梅. 点密度专题图随机点生成算法研究[J]. 计算机与现代化, 2010, 1(8): 22-24.
ZHANG Hai-wen;SHI Liang-ping;HAO Yang-mei. Study on Algorithm for Generating Random Points in Dot Density Map[J]. Computer and Modernization, 2010, 1(8): 22-24.
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链接本文: http://www.c-a-m.org.cn/CN/10.3969/j.issn.1006-2475.2010.08.007
http://www.c-a-m.org.cn/CN/Y2010/V1/I8/22